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Sagot :
Linear Equation:
Representation:
x = Investment A
y = Investment B
Equation 1: Sum of Investments
x + y = 400,000
Equation 2: Sum of Interest on Investments A and B
0.03x + 0.07y = 16,000
Solve using Substitution:
x + y = 400,000
y = 4000,000 - x
Solve for x (Investment A):
Substitute 400,000 - x for y in Equation 2:
0.03x + 0.07y = 16,000
0.03 x + 0.07 (400,000 - x) = 16,000
0.03x - 0.07x + 28,000 = 16,000
-0.04x = 16,000 - 28,000
-0.04x = - 12,000
-0.04x/0.04 = -12,000 / -0.04
x = 300,000
Investment A (x) = 300,000 pesos
Solve for y (Investment B):
Substitute 300,000 for x in Equation 1:
x + y = 400,000
300,000 + y = 400,000
y = 400,000 - 300,000
y = 100,000
Investment B (y) = 100,000 pesos
Interest on each investment:
Investment A:
0.03 (x) = 0.03 (300,000) = 9,000 pesos
Investment B:
0.07 (y) = 0.07 (100,00) = 7,000 pesos
Sum of interests on investments:
9,000 + 7,000 = 16,000
16,000 = 16,000
(CLICK IMAGE BELOW TO VIEW ANSWERS ON OTHER QUESTIONS)
Note to Admin: Why does that copyrights reminder keep on popping out when I want to highlight in bold the fonts? Could it be my mouse? Thanks:-)
Representation:
x = Investment A
y = Investment B
Equation 1: Sum of Investments
x + y = 400,000
Equation 2: Sum of Interest on Investments A and B
0.03x + 0.07y = 16,000
Solve using Substitution:
x + y = 400,000
y = 4000,000 - x
Solve for x (Investment A):
Substitute 400,000 - x for y in Equation 2:
0.03x + 0.07y = 16,000
0.03 x + 0.07 (400,000 - x) = 16,000
0.03x - 0.07x + 28,000 = 16,000
-0.04x = 16,000 - 28,000
-0.04x = - 12,000
-0.04x/0.04 = -12,000 / -0.04
x = 300,000
Investment A (x) = 300,000 pesos
Solve for y (Investment B):
Substitute 300,000 for x in Equation 1:
x + y = 400,000
300,000 + y = 400,000
y = 400,000 - 300,000
y = 100,000
Investment B (y) = 100,000 pesos
Interest on each investment:
Investment A:
0.03 (x) = 0.03 (300,000) = 9,000 pesos
Investment B:
0.07 (y) = 0.07 (100,00) = 7,000 pesos
Sum of interests on investments:
9,000 + 7,000 = 16,000
16,000 = 16,000
(CLICK IMAGE BELOW TO VIEW ANSWERS ON OTHER QUESTIONS)
Note to Admin: Why does that copyrights reminder keep on popping out when I want to highlight in bold the fonts? Could it be my mouse? Thanks:-)

Salamat sa pagpili sa aming plataporma. Kami ay nakatuon sa pagbibigay ng pinakamahusay na mga sagot para sa lahat ng iyong mga katanungan. Bisitahin muli kami. Mahalaga sa amin ang iyong pagbisita. Huwag mag-atubiling bumalik para sa higit pang maaasahang mga sagot sa anumang mga tanong na mayroon ka. Maraming salamat sa paggamit ng Imhr.ca. Balik-balikan kami para sa mga kasagutan sa inyong mga tanong.